SHIP DESIGN IN PRACTICE

GUIDELINESON MOORING

OF SHIPSJAN BABICZ

BAOBAB NAVAL CONSULTANCYwww.betterships.com

GDAŃSK 2011

Photo C. Spigarski

54

Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

8 Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

A bollard between mooring drum (4) and shipside fairlead (5) is not necessary.

Lack of space for safe workingFree space around the bollard must enable safe working. 0.4m from the barrels of the bollard with a working area of 1.2m x 1.2m.

Photos J.Babicz

Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

28 Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

8. EXAMPLE OF DESIGN PROCEDURE

Vessel: A container vessel Bmld = 25.00m, LBP = 150.10m The ship has a forecastle and a poop. Arrangement of chocks and bollards shall meet Panama requirements.

Equipment: Two combined windless/mooring winches 125kN, each with one split mooring drum and a warping head, Two mooring winches aft, 125kN, each with one split mooring drum and a warping head, Four primary mooring lines, Four secondary mooring lines.

SOLUTIONThe ship has beam B over 22.86m. To meet the Panama Canal requirements we can use the basic ar-rangement BA4 according to item “l”.

Fore mooring layout

1. First we will try to arrange windlasses in such a way to have direct lead from the mooring drums to the shipside fairleads.

2. At the second step we will check if fleet angles do not exceed 1.5°.

3. At the third step we will add fittings necessary for transit through the Panama Canal: a double chock right at stem accompanied by two heavy bollards,a double chock accompanied by a heavy bollard as the Panama Set 1.

4. Checking working areas

5. At the next step we will arrange a single chock accompanied by a bollard on the Main Deck as the Panama Set 2.

Panama Set 2 on the Main Deck (left) and the guide on the Forecastle Deck (right)

Photos J.Babicz

190 200

16 12Panama Set1

FORECASTLE DECK

Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

Jan Babicz, All rights reserved

GUIDELINES ON MOORING OF SHIPS

33

Free working areas

FORECASTLE DECK

Sketch C. HabinaSTEP 4